不同覆盖材料对西藏林芝土壤温湿度及玉米生长发育的影响  

Effects of Different Mulching Materials on Temperature and Humidity of Soil and Growth and Development of Maize (Zea Mays L.) in Linzhi,Tibet

作　　者：邵荣华 刘翠花 王改花 赵艳艳 SHAO Rong hua;LIU Cui-hua;WANG Gai hua;ZHAO Yan yan(Plant Sciences College,Tibet Agriculture and Animal Husbandry University,Tibet Linzhi 8G0000,China;Department of Scientific Research Management,Tibet Agriculture and Animal Husbandry University,Tibet Linzhi 8G0000,China)

机构地区：[1]西藏农牧学院植物科学学院,西藏林芝860000 [2]西藏农牧学院科研处,西藏林芝860000

出　　处：《西藏农业科技》2018年第1期22-28,共7页Tibet Journal of Agricultural Sciences

基　　金：西藏大学农牧学院研究生创新项目"不同地膜对西藏林芝土壤环境及玉米生物学性状的影响研究"(Yjs2016-12)

摘　　要：采用大田对比试验,研究了不同覆盖材料对土壤温湿度、玉米生长发育、经济效益、生态效益等方面的影响。研究表明,在玉米生育前期,不同材料覆盖能有效提高土壤温度,在生育中后期增温效果不再明显,对土壤湿度的影响主要与天气状况有关;不同材料覆盖能明显缩短玉米生育期和提前各生育时期、提高出苗率和产量,普通塑料地膜(PM)、可降解地膜(KM)、黑白双色地膜(HBM)、草浆地膜(CM)、露地(CK)产投比分别为4.01、3.87、3.58、1.07、3.19,普通塑料地膜(PM)、可降解地膜(KM)、黑白双色地膜(HBM)残留量为98.98%、20.52%、98.42%。By field comparison test, the effects of different mulching materials on soil temperature and humidity, growth and devel opment, ecological benefits and economic benefits were studied. Results1 showed that different mulching materials could improve soil temperature effectively in the early period of maize growth,which was no longer evident in the middle and late period of its growth.The influence on soil humidity was mainly related to weather conditions; different mulching materials could shorten the growth period of maize and advance all the growth periods,increase the emergence rate and yield. The output investment ratio of common plastic mulch （PM）, degradable mulch （KM）, Mack and white mulch （HBM）, straw pulp mulch （CM）, and open field （CK） was 4.01, 3.87, 3.58, 1.07, 3.19 respectively, and the mulch remnant was 98.98%, 20.52%, 98.42% respectively.

关 键 词：不同覆盖材料 玉米 土壤温湿度 生长发育 地膜残留量 

分 类 号：S513[农业科学—作物学]